Charles berthelot



C. BERTHELOT.

OVEN WITH REGENERATOR.

APPLICATION FILED AUG. 15. I919.

Patented Dec. 7, 1920.

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APPLICATION HLED AUG.I5, 1919.

. Patented Dec. 7, 1920'.

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UHAIRLES BER'I'HELO'I, 0F PARIS, FRANCE.

OVEN "WITH REGENERATOIR.

Application til-ed August 15, 1919.

To (ZZZ whom it may concern:

Be it known that 1, CHARLES BERTHELOT, a citizen of the Republic of France, and residing at Paris Seine Department. No. 94. Rue Saint-Lazaro, in the Republic of France. engineer, have invented certain new and useful Improvements in Ovens with Hegenerators. (Case A,) of which the t0ll0wing is a specification.

The invention relates to an oven with vertical fines or heating chambers and regenerators more particularly adapted to the manufacture of metallurgical coke and illuminating gas. It is suitable for the carbonization of coal and other materials.

Reference is made to my co-pending application No. 317780, ovens and regulators.

The oven may be designated an oven with longitudinal regenerators in parallel. The regenerator, which extends under the oven, is divided into compartments, generally tour. completely separated from each other by transverse partitions. This arrangement affords the advantage of preventing short circuits and stagnant zones in the passages,

which are of course not favorable to the heating eiiiciency of the regenerator. Moreover, the parallel arrangement has the considerable advantage of involving only a very slight loss of charge at the place of discharge of the burnt gases. Consequently, the difference of pressure between the heating chambers and the carbonizing chambers is reduced to a minimum, and this reduces the risk of intermingling the gases in these two kinds of chambers. such intermingling being. as is known. injurious to the output of byproducts and the quality of the gas produced.

Favorable to the thermal etliciency of the system. the arrangement is also advantage one to the stability of the structure. by reason of the transverse walls dividing the re generators.

The arrangement also has the advantage that it. allows of using a single collecting flue for the burnt gases. As compared with the usual arrangements. which generally comprise two fines used alternatively,- this re sults in an evident simplification. and also enables the single line to be kept at a constant temperature. This insures uniform dratt through the chimney, and consequently the most favorable combustion of the gas for heating the battery of ovens. and greatly facilitates the control and regula- Specification of Letters Patent.

Patented Dec. 7, 1920.

fierial No. 31?,72'9.

tion of the combustion. It may be remarked that thepossibility of using a single collect ing line for the burnt gases allows of reducmg from five to one the number of regulating dampers for the collecting fines. However, the invention does not exclude the use of two lines operating simultaneously. Finally, another advantage of the longitudinal regenerators in parallel is that each compartment of the regenerator receives the burnt gases of a well defined zone of the heating chamber, which is divided into com partments in the same way. This facilitates regulation by proportioning the volume of air for combustion to the volume of combustible gas. with the result of uniform heat ing oi the wall of the furnace. Hitherto, with all the burnt gases uniting in one regenerator, the regulation and control of the combustion were both inconvenient and irregular.

The invention is illustrated in the accompanying drawing, in which Figure 1 is a longitudinal section of oven, with dues and regenerators, the left hand. part being a section on the line A-A of Fig. 2, and the right hand part a section onv the line Ii- B of Fig. 2.

Figs. 2 and 3 are horizontal sections. the former on the line CC oi Fig. 1, at the level of the air and gas inlet conduit to the combustion chambers, and the latter on the line D D, at the base of the regenerator.

Fig. 4. is a vertical section. the left-hand part on the line EE of Figs. 2 and 3, and the right-hand part on the line F-F.

The circulation of the gases in this oven is as follows:-

The heating gas is supplied through the pipes 1 and 1 For the first halt hour it is distributed to the heating chambers through the valves 2 and 2 and for the second half hour through the valves 3 and 3 A series of conduits distributes the gas to a series of calibrated orifices or twyers 18 opening into the vertical heating chambers 5 and 7. lluring the first half hour. for example. in the first half on the left of the combustion chamber. the hot air coming from the compartment of the regenerator 8 corresponding to this half arrives through the orilices l.- and supports the combustion of the gas.

lhc twyers 18 are accessible from the up per part of the oven by means of movable plugs 20 and 19 .150 allow of regulating the admission of gas along the wall of the oven.

The regulation of the heat is also efiected by adjusting the dampers 19.

The incandescent gases ascend in the heating chambers 5, traverse the horizontal conduit 6, and descend through the heating chambers 7 to the compartment 9 of the regenerator.

For the right hand half of the combustion chamber the flow of the gases is symmetrical with that on the left.

During the second half hour the fiow of the gases is reversed. The gases ascend in the heating chambers 7 and descend in the heating chambers5, on their way to the regenerator compartment 8 or 11.

Under a single oven, the four compartments forming a regenerator are traversed simultaneously during one period by the air for combustion to beheated, and during the following period by the burnt gases whose sensible "heat is to be recovered. In this Way, during a given period, generally half an hour, each of the regenerators of a given parallel is traversed by the air for combustion for the vertical heating chambers placed .on both sides of the oven above this regenerator, and each of the regenerators of the other parallel is traversed by the burnt gases coming also from both sides of the oven placed over the regenerator. In the following period the reverse takes place.

F or each of the regenerator compartments, 8, 9, 10, 11, there is a conduit designated 12, 13, 1 1, and 15 respectively situated at its base and terminating in a cast iron T-nnion 16 having a cast iron register appertaining to each conduit. By means of this register the admission of air to each compartment of the regenerator and the combustion chamber 18 regulated. The whole of the burnt gas is conducted by the union 16 past the damper 17 and through the pipe 21 to the fine 22 leading to the chimney.

It may be remarked that the combustion chamber is longitudinally divided into four "equal parts, those at the ends being traversed simultaneously by parallel incandescent streams of gas fiowing in the same direction,

but separate. it is thus possible to have the period of direct heating, or in other words the period of heatmg by ascending currents of gas, longer than the period of: heating the said end parts by descendmg currents of gases of combustion. The losses of heat by radiation, inevitable at the doors of the ovens, are thus compensated. The duration of heating the two central parts is thus reduced, but this is no disadvantage, as they are located in the middle ofthe oven structure. I

Claims:

1. An oven comprising carbonizing chamhers, vertical fines, regenerators located below said chambers, longitudinal fines above said vertical fines, conduits connecting said regenerators to the lower part of the vertical fines adjacent thereto, conduits connecting the upper part of the vertical fines to the longitudinal fines above the same, means for placing in communication one half of the vertical fines located between two carbonizing chambers with the rcgenerator under one of said chambers and with the longitudinal fine over said vertical fines, means for placing in communication the said longitudinal fine with the other half of said vertical fines, and the latter with the regenerator under the adjacent chamber.

2. An oven comprising carbonizing chambers, vertical fines, rcgenerators located be low said chambers and divided into compartments in series, longitudinal fines above said vertical fines, conduits connecting said regenerators to the lower part of the vertical fines adjacent thereto, conduits connecting the upper part of the vertical fines to the longitudinal fines above the same, means for placing in communication one half oi the vertical fines located between two carbonizing chambers with the regenerator under one of said chambers and with the longitudinal. fine over said vertical fines, means for placing in communication the said longitudinal fine with the other half of: said vertical fines, and the latter with the regenerator under the adjacent chamber.

3. An oven comprising carbonizing chambers, vertical fines, regenerators located below said chambers, longitudinal fines above said vertical fines, conduits connecting said regenerators to the lower part of the vertical fines adjacent thereto, conduits connecting the upper part oi the vertical fines to the longitudinal fines above the same, means for placing in communication one half of the vertical fines located between two carbonizing chambers with the regenerator under one ofsaid chambers and with the longitudinal fine over said vertical fines, means for placing in communication the said longitudinal fine with the other half of said vertical fines, and the latter with the regcnerator under the adjacent chamber, a main located on one side of the oven, conduits connecting said main to the regenerators, for the discharge of the smoke gases from the latter.

4. An oven comprising carbonizing chambers, vertical fines, regenerators below said chambers, longitudinal fines above said vertical fines, conduits connecting said regenerators to the lower part of the adjacent vertical fines, conduits connecting the upper part of the vertical fines to the longitudinal fines above the same, means for placing in communication one half of the vertical fines between two carbonizing chambers with the regenerator located below one of said chainbers and with the longitudinal fine above said vertical fines, means for placing in communication the said longitudinal fine with the other half of said vertical fines, and the latter With the regenerator under the adjacent chamber, means for circulating air in parallel and in the same direction in all the regenerator compartments under each carbonizing chamber, means for then circulating said air through one hah of the vertical flues on each side of each carbonizing chan1- ber, means for circulating gases of combus- 10 tion coming, as to one half from the first mentioned fines, and as to the other half from the second mentioned lines, through the said regenerator compartments.

In testimony, that I claim the foregoing as my invention I have signed my name in 15 presence of two subscribing Witnesses.

CHARLES BERTHELOT. Witnesses CHAs. P. PRnssLY, MAURICE RAUX. 

